OK now that everyone is calm.....
The FW190D was first reported in combat against US Bombers in late 1943. It had been delivered in 1943 late Spring, early Summer to a few units for testing The liquid cooled engine design was in response to high altitude bombers. Possibly the first hurdle in this discussion is to agree when the 190-D actually entered service. The 190 D0 and D-1 are not available in the mix so the D-9, which was in production about the same time as The Normandy Invasion being all that is selectable, is what's available.
In order to put together an event, a short length event at that, and put two aircraft against each other I felt these two AH models (repeat...AH models) were a good match for skilled pilots. The facts written up when The RAF captured a 190A and compared it to a 1942 Spit IX had the Spit outperforming the 190A in some areas that the 190D would have challenged.
Having flown both AH models it seems like a fair fight to me. The true test is when people fly this event and then I will be very interested to hear the critiques, especially from Spit pilots.
On a persoanl note, the "realistic" note was in regards to the two aircraft being present at the time the event takes place. Due to some restrictions, the element of "what if" always plays a part in any of the snap-shots I've designed. It simply has to, or in my opinion they would not be "playable". Refering to that as a farce is a bit over the top.